Nutrient Transport Mechanisms in Malaria Parasites
Summary
Malaria parasites reside within host erythrocytes and rely on a series of specialised transport pathways to import essential nutrients and export waste. Upon invasion, parasites remodel the red cell membrane by establishing new permeation pathways that facilitate uptake of amino acids, sugars and ions at rates far exceeding those of uninfected cells. Concurrently, exported parasite proteins assemble into the plasmodial surface anion channel and other conduits across the erythrocyte membrane. Nutrients then traverse the parasitophorous vacuole membrane via dedicated channels before crossing the parasite plasma membrane. Key molecular assemblies include the soluble RhopH complex, which transitions to an integral form at the host membrane to mediate both invasion and channel formation, and specialised transporters such as aquaporins. Within the parasite, an endocytic apparatus internalises host haemoglobin, supplementing amino acid pools lacking certain essential residues. Disruption of any component in this multistep nutrient‐acquisition network compromises parasite survival, identifying these pathways as attractive targets for antimalarial intervention.
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Nutrient Transport Mechanisms in Malaria Parasites publication trend
The graph below shows the total number of articles in nutrient transport mechanisms in malaria parasites across all publications each year (not limited to Nature Index journals).
Technical terms
New permeation pathways (NPPs): Parasite‐induced channels at the erythrocyte membrane that enhance nutrient uptake.
Plasmodial surface anion channel (PSAC): Broad‐selectivity channel formed by the RhopH complex on infected erythrocytes.
RhopH complex: Three‐protein assembly that mediates erythrocyte invasion and nutrient‐channel formation.
Parasitophorous vacuole membrane (PVM): Membrane enclosing the intracellular parasite, requiring dedicated channels for solute passage.
Aquaporin: Membrane channel specialising in transport of water and small solutes such as glycerol.
CLAG proteins: Components of the RhopH complex that contribute to channel architecture in the host membrane.
References
- Utilisation of an in vivo malaria model to provide functional proof for RhopH1/CLAG essentiality and conserved orthology with P. falciparum. Journal of Biomedical Science (2025).
- Intracellular Plasmodium aquaporin 2 is important for sporozoite production in the mosquito vector and malaria transmission. Proceedings of the National Academy of Sciences of the United States of America (2023).
- Roles of the RON3 C-terminal fragment in erythrocyte invasion and blood-stage parasite proliferation in Plasmodium falciparum. Frontiers in Cellular and Infection Microbiology (2023).
- Malaria parasites use a soluble RhopH complex for erythrocyte invasion and an integral form for nutrient uptake. eLife (2021).
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